public int AddIdentityToSequence(Sequence sequence, int position, Identity identity, DataServiceTransaction dataServiceTransaction)
{
lock (_objLock) {
if (position == -1 || position > sequence.Size)
{
position = sequence.Add(identity);
}
else
{
sequence.Insert(position, identity);
}
IDictionary sequenceIdMap = _itemIdToSequenceIdMapHash[identity] as IDictionary;
if (sequenceIdMap == null)
{
sequenceIdMap = new Hashtable();
_itemIdToSequenceIdMapHash[identity] = sequenceIdMap;
}
sequenceIdMap[sequence.Id] = sequence;
if (dataServiceTransaction != null)
{
dataServiceTransaction.GenerateUpdateCollectionMessage(UpdateCollectionRange.InsertIntoCollection, _dataDestination, sequence, position, identity);
}
return(position);
}
}
public void RemoveIdentityFromSequence(Sequence sequence, Identity identity, int position, DataServiceTransaction dataServiceTransaction)
{
if (position == -1)
{
return;
}
lock (_objLock) {
IDictionary sequenceIdMap = _itemIdToSequenceIdMapHash[identity] as IDictionary;
if (sequenceIdMap != null)
{
sequenceIdMap.Remove(sequence.Id);
//Release the item if it does'n occur in any sequence
if (sequenceIdMap.Count == 0)
{
_itemIdToItemHash.Remove(identity);
_itemIdToSequenceIdMapHash.Remove(identity);
}
if (sequence[position].Equals(identity))
{
sequence.RemoveAt(position);
}
else
{
sequence.Remove(identity);
}
if (dataServiceTransaction != null)
{
dataServiceTransaction.GenerateUpdateCollectionMessage(UpdateCollectionRange.DeleteFromCollection, _dataDestination, sequence, position, identity);
}
}
else
{
_itemIdToItemHash.Remove(identity);
sequence.Remove(identity);
}
}
}
public void RemoveIdentityFromSequence(Sequence sequence, Identity identity, int position, DataServiceTransaction dataServiceTransaction) {
if (position == -1)
return;
lock (_objLock) {
IDictionary sequenceIdMap = _itemIdToSequenceIdMapHash[identity] as IDictionary;
if (sequenceIdMap != null) {
sequenceIdMap.Remove(sequence.Id);
//Release the item if it does'n occur in any sequence
if (sequenceIdMap.Count == 0) {
_itemIdToItemHash.Remove(identity);
_itemIdToSequenceIdMapHash.Remove(identity);
}
if (sequence[position].Equals(identity))
sequence.RemoveAt(position);
else
sequence.Remove(identity);
if (dataServiceTransaction != null)
dataServiceTransaction.GenerateUpdateCollectionMessage(UpdateCollectionRange.DeleteFromCollection, _dataDestination, sequence, position, identity);
} else {
_itemIdToItemHash.Remove(identity);
sequence.Remove(identity);
}
}
}
public int AddIdentityToSequence(Sequence sequence, int position, Identity identity, DataServiceTransaction dataServiceTransaction) {
lock (_objLock) {
if (position == -1 || position > sequence.Size)
position = sequence.Add(identity);
else
sequence.Insert(position, identity);
IDictionary sequenceIdMap = _itemIdToSequenceIdMapHash[identity] as IDictionary;
if (sequenceIdMap == null) {
sequenceIdMap = new Hashtable();
_itemIdToSequenceIdMapHash[identity] = sequenceIdMap;
}
sequenceIdMap[sequence.Id] = sequence;
if (dataServiceTransaction != null)
dataServiceTransaction.GenerateUpdateCollectionMessage(UpdateCollectionRange.InsertIntoCollection, _dataDestination, sequence, position, identity);
return position;
}
}